1
我创建了一个表有连字符连字符列名卡桑德拉
create table word (name text,"all-category" text,primary key(name));
我能成功做到这一点
desc schema;
CREATE KEYSPACE demo WITH replication = {'class': 'SimpleStrategy', 'replication_factor': '1'} AND durable_writes = true;
CREATE TABLE demo.word (
name text PRIMARY KEY,
"all-category" text
) WITH bloom_filter_fp_chance = 0.01
AND caching = {'keys': 'ALL', 'rows_per_partition': 'NONE'}
AND comment = ''
AND compaction = {'class': 'org.apache.cassandra.db.compaction.SizeTieredCompactionStrategy', 'max_threshold': '32', 'min_threshold': '4'}
AND compression = {'chunk_length_in_kb': '64', 'class': 'org.apache.cassandra.io.compress.LZ4Compressor'}
AND crc_check_chance = 1.0
AND dclocal_read_repair_chance = 0.1
AND default_time_to_live = 0
AND gc_grace_seconds = 864000
AND max_index_interval = 2048
AND memtable_flush_period_in_ms = 0
AND min_index_interval = 128
AND read_repair_chance = 0.0
AND speculative_retry = '99PERCENTILE';
但现在当我尝试使用此列如下查询柱之一
SELECT * FROM word where "all-category" = 'FOOD';
我得到这个错误
InvalidRequest:代码= 2200 [查询无效]消息=“否支持二级索引找到的非主键列的限制”
如何在这种情况下查询?
我应该怎么做,如果我有多个列,我必须查询任何列? –
相应地创建您的数据模型。在任何NoSQL数据库建模中扮演非常重要的角色。例如,如果你在类别和名称上有复合主键,则不需要二级索引 –
你有较慢的二级索引将是写性能 –